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Baltic Seabirds Transect Surveys

Dataset homepage

Citation

Zydelis, R. 2006. Baltic Seabirds Transect Surveys. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/358) on yyyy-mm-dd. https://doi.org/10.15468/zncjz5 accessed via GBIF.org on 2022-05-20.

Description

Original provider: Institute of Ecology of Vilnius University Dataset credits: Gediminas Vaitkus, Institute of Ecology of Vilnius University Abstract: Seabirds transect surveys were conducted in Baltic Sea from 1992 to 1999. Standard seabird offshore sampling techniques assume that line transect of 300 m width is basically used for counting birds sitting on the water surface, whereas the 'snap-shot' method is used for the counting of flying birds at strongly fixed intervals of time.

Additional efforts were put into studies of the offshore seabird and waterfowl movements. We recorded flying birds along 1,000 m wide transect over the 'classic' 300 m transect used for calculations of seabird densities during 'snap-shots'. Purpose: The main purpose of our work was to investigate spatial structure and dynamics of the offshore seabird populations and to assess their status in specific conditions of the Baltic Sea marine ecosystem. The main tasks of our work were the following:
-Study species composition, abundance and spatial distribution of seabird populations in different seasons of the year, distinguish dominating species and the most important seabird concentration areas in the eastern Baltic;
-Study community structure of inter-specific assemblages and ecological adaptations of wintering seabird populations;
-Study the processes of spatial dynamics and trends of spatial structure in regional seabird populations within the gradient of winter climatic conditions; and
-Study offshore migratory routes and temporary concentration areas of seabirds in the Baltic Proper. Supplemental information: [2020-10-01] The following invalid species names were corrected according to the Integrated Taxonomic Information System (ITIS). Larus ridibundus (176835) => Chroicocephalus ridibundus (824041) Corvus monedula (179746) => Coloeus monedula (916629) Little Gull: Larus minutus (176840) => Hydrocoloeus minutus (824065) Little Tern: Sterna albifrons (176899) => Sternula albifrons (824126) Mergus albellus (175190) => Mergellus albellus (175196) [2015-03-24] There were 199 records with a value of "EMPTY" or "empty" in the species column. These records are removed.

Purpose

The main purpose of our work was to investigate spatial structure and dynamics of the offshore seabird populations and to assess their status in specific conditions of the Baltic Sea marine ecosystem. The main tasks of our work were the following:
-Study species composition, abundance and spatial distribution of seabird populations in different seasons of the year, distinguish dominating species and the most important seabird concentration areas in the eastern Baltic;
-Study community structure of inter-specific assemblages and ecological adaptations of wintering seabird populations;
-Study the processes of spatial dynamics and trends of spatial structure in regional seabird populations within the gradient of winter climatic conditions; and
-Study offshore migratory routes and temporary concentration areas of seabirds in the Baltic Proper.

Sampling Description

Study Extent

NA

Sampling

NA

Method steps

  1. NA

Additional info

marine, harvested by iOBIS

Taxonomic Coverages

Scientific names are based on the Integrated Taxonomic Information System (ITIS).
  1. Alle alle
    common name: Dovekie rank: species
  2. Alauda arvensis
    common name: Eurasian Skylark rank: species
  3. Alca torda
    common name: Razorbill rank: species
  4. Anas
    common name: Dabbling Ducks rank: genus
  5. Anas
    common name: Dabbling Ducks rank: genus
  6. Anas crecca
    common name: Eurasian Teal rank: species
  7. Anas platyrhynchos
    common name: Mallard rank: species
  8. Anser
    common name: Bean Geese rank: genus
  9. Apus apus
    common name: Common Swift rank: species
  10. Ardea cinerea
    common name: Gray Heron rank: species
  11. Aythya marila
    common name: Greater Scaup rank: species
  12. Bucephala clangula
    common name: Common Goldeneye rank: species
  13. Carduelis spinus
    common name: Eurasian Siskin rank: species
  14. Cepphus grylle
    common name: Black Guillemot rank: species
  15. Chlidonias niger
    common name: Black Tern rank: species
  16. Circus aeruginosus
    common name: Western Marsh Harrier rank: species
  17. Clangula hyemalis
    common name: Long-tailed Duck rank: species
  18. Corvus corone
    common name: Carrion Crow rank: species
  19. Corvus frugilegus
    common name: Rook rank: species
  20. Coloeus monedula
    common name: Western Jackdaw rank: species
  21. Columba palumbus
    common name: Common Wood Pigeon rank: species
  22. Cygnus columbianus
    common name: Tundra Swan rank: species
  23. Cygnus cygnus
    common name: Whooper Swan rank: species
  24. Cygnus
    common name: Swans rank: genus
  25. Cygnus
    common name: Swans rank: genus
  26. Cygnus olor
    common name: Mute Swan rank: species
  27. Erithacus rubecula
    common name: European Robin rank: species
  28. Fringilla coelebs
    common name: Common Chaffinch rank: species
  29. Gavia arctica
    common name: Arctic Loon rank: species
  30. Gavia immer
    common name: Common Loon rank: species
  31. Gavia stellata
    common name: Red-throated Loon rank: species
  32. Gavia
    common name: Loons rank: genus
  33. Gavia
    common name: Loons rank: genus
  34. Grus grus
    common name: Common Crane rank: species
  35. Hirundo rustica
    common name: Barn Swallow rank: species
  36. Larus argentatus
    common name: Herring Gull rank: species
  37. Larus canus
    common name: Mew Gull rank: species
  38. Larus fuscus
    common name: Lesser Black-backed Gull rank: species
  39. Larus hyperboreus
    common name: Glaucous Gull rank: species
  40. Larus marinus
    common name: Great Black-backed Gull rank: species
  41. Hydrocoloeus minutus
    common name: Little Gull rank: species
  42. Chroicocephalus ridibundus
    common name: Common Black-headed Gull rank: species
  43. Larus
    rank: genus
  44. Mergellus albellus
    common name: Smew rank: species
  45. Melanitta fusca
    common name: Velvet Scoter rank: species
  46. Mergus merganser
    common name: Common Merganser rank: species
  47. Melanitta nigra
    common name: Black Scoter rank: species
  48. Mergus serrator
    common name: Red-breasted Merganser rank: species
  49. Motacilla alba
    common name: White Wagtail rank: species
  50. Parus major
    common name: Great Tit rank: species
  51. Sterna paradisaea
    common name: Arctic Tern rank: species
  52. Passeridae
    rank: family
  53. Phalacrocorax carbo
    common name: Great Cormorant rank: species
  54. Phylloscopus
    rank: genus
  55. Podiceps auritus
    common name: Horned Grebe rank: species
  56. Podiceps cristatus
    common name: Great Crested Grebe rank: species
  57. Prunella modularis
    common name: Dunnock rank: species
  58. Regulus regulus
    common name: Goldcrest rank: species
  59. Rissa tridactyla
    common name: Black-legged Kittiwake rank: species
  60. Somateria mollissima
    common name: Common Eider rank: species
  61. Sternula albifrons
    common name: Little Tern rank: species
  62. Stercorarius
    rank: genus
  63. Sterna hirundo
    common name: Common Tern rank: species
  64. Stercorarius parasiticus
    common name: Parasitic Jaeger rank: species
  65. Stercorarius pomarinus
    common name: Pomarine Jaeger rank: species
  66. Sturnus vulgaris
    common name: Common Starling rank: species
  67. Tringa
    rank: genus
  68. Troglodytes troglodytes
    common name: Winter Wren rank: species
  69. Turdus merula
    common name: Common Blackbird rank: species
  70. Uria aalge
    common name: Common Murre rank: species
  71. Vanellus vanellus
    common name: Northern Lapwing rank: species

Geographic Coverages

Baltic Sea

Bibliographic Citations

Contacts

Ramunas Zydelis
originator
position: Primary contact
Duke University
email: zydelis@duke.edu
OBIS-SEAMAP
metadata author
Marine Geospatial Ecology Lab, Duke University
A328 LSRC building
Durham
27708
NC
US
email: seamap-contact@duke.edu
homepage: http://seamap.env.duke.edu
OBIS-SEAMAP
distributor
Marine Geospatial Ecology Lab, Duke University
A328 LSRC building
Durham
27708
NC
US
email: seamap-contact@duke.edu
homepage: http://seamap.env.duke.edu
Ramunas Zydelis
owner
position: Primary contact
Duke University
email: zydelis@duke.edu
Ramunas Zydelis
administrative point of contact
position: Primary contact
Duke University
email: zydelis@duke.edu
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